Apparatus for preparing ends of stovepipes for joining



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0 e E. GRAHAM & J. JAGQUART. APPARATUS FOR PREPARING ENDS 0F STOVEPIPESFOR JOINING.

Patented July 13, 1897.

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. I M W .Atiorney 5 r, 0 70 70 a l II n z 5 Ill! 4 Z A Z M II! 2 W H M 1d n M d m J a M 7 I i V m 7' WITNESSES UNITED STATES PATENT OFFICE.

ELIAS GRAHAM AND JACOB JACQUART, OF BROOTON, ILLINOIS.

APPARATUS FOR PREPARING ENDS OF STOVEPIPES FOR JOINING.

SPECIFICATION forming part of Letters Patent No. 586,334, dated July 13,1897.

Application filed October 5, 1 8 9 6 To all whom it may concern:

Be it known that we, ELIAS GRAHAM and JACOB JACQUART, citizens of theUnited States, residing at Brocton, in the county of Edgar and State ofIllinois, have invented certain new and useful Improvements inStovepipes; and we do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to improvements in tinners apparatus, and hasmore particular relation to apparatus for preparing the ends ofstovepipe to be fastened together.

The invention consists of certain novel constructions, combinations, andarrangements of parts, all of which will be hereinafter moreparticularly set forth and claimed.

In the accompanying drawings, forming part of this specification, Figure1 represents a side elevation of the devices embodying our invention.Fig. 2 represents a top plan view of the same. Fig. 3 represents acentral vertical longitudinal section through said devices. Fig. 4represents a transverse vertical section through the movable block; andFigs. 5 and 6 represent, respectively, plan views of thebayonet-slot-forming dies.

A in the drawings represents the base of our improved device; B, thedie-carrying lever mounted thereon; O, the segmental lever connected tosaid die-lever; D, the sliding block, and E the pivoted punch mountedthereon.

The base A may be of any desired construction. The lever B is mounted atone end of the base A by means of apertured lugs a, mounted upon saidbase, and an apertured lug b, mounted upon said lever B, a suitablesecuring-pin I) being passed through the apertures of said lugs afterthey are in position. The forward end of the said lever B is formed witha die-block 6 having an angular die 17 formed on its lower face. Thisdie is depressed to engage a die 6 formed on the base A by means of anoperating-lever O, pivoted to the rear end of the lever B and providedwith a segmental portion 0, adapted to engage the upper surface of thebase A when said lever 0 is operated, and thus raise the rear end of thelever B and depress the forward Serial No. 607,842. (No model.)

end carrying the die b The said dies 11 and b are curved incross-section to correspond with the curvature of the pipe F, into whichthe bayonet-slot is to be stamped. The end of the pipe is slipped inbetween said dies before the lever B is operated until its inner endcontacts with gage-bolts (2 mounted in the upper side of the base A.

It will be observed from the foregoing description that it is simplynecessary to slip the end of the pipe F between the dies until itstrikes the gage-bolts b and then depress the upper end of the lever Ginorder to form a bayonet-slot in this end of the pipe. At the same timethat this operation. is in progress the opposite end of said pipe F maybe receiving an impression from the pivoted stamp E. This stampcomprises a lateral shaft 2, suitably journaled upon the upper surfaceof the block D and provided at its middle with a stamping arm 6, havinga stamping or embossing projection (2 end of the said shaft 6 issquared, so that a suitable operating-lever E may be applied thereto torotate said shaft and cause the arm e to descend with sufficient forceto stamp a teat or projection upon the end of the pipe by means of theprojection e ,with which it is provided. The said block D is providedupon its upper surface with a curved cradle d, in which the rear end ofthe pipe F is adapted to be firmly held during the stamping operation.The block D is provided upon its under side with a dovetailguiding-piece (1, adapted to fit in between spaced dovetail guides 61 61mounted upon the base A, suitable ad j ustin gbolts passing through saidblock D and engaging the upper surface of said guides d for locking saidblock D in any of its adjusted positions. is necessary because of thevarying lengths of pipes that are to be stamped.

It will be observed from the foregoing description that the pipe isstamped at one end with a bayonet-slot and at the other with a suitableprojection adapted to enter a bayonetslot formed in an adjoining sectionof pipe and lock the two sections firmly together. It will also beobserved that the stamping operation at the respective ends of the pipemay be accomplished simultaneously by operating the levers G and E. Ifso desired,

The

This adjustability of the'block D v the dies 11 and i) may be removablyattached in position, so that they may be replaced by others if theybecome injured or broken. It will also be observed that by the peculiararrangement of the operating-lever O we secure great leverage and canstamp the bayonetslot in the end of a pipe with the expenditure of verylittle power.

This device may be made of suflicientlightness to be carried about fromplace to place with the tinners hit, so that the desired lengths of pipemay be first cut and then stamped with the securing bayonet-slot andprojections.

Having now described our invention, What we claim as new, and desire tosecure by Letters Patent, is-

1. The combination with a suitable base, of a lever mounted thereon,dies mounted upon said lever and base respectively for forming abayonet-slot in the end of a stovepipe, a punch mounted upon theopposite end of said base and adapted to form a teat or projection uponthe opposite end of said stovepipe, substantially as described.

2. The combination with a suitable base, a block adjustably mounted uponthe same, a stamp mounted upon said block and adapted to stamp a teat orprojection upon one end of a stovepipe, a lever mounted upon said baseand dies mounted upon said lever and base respectively, for stamping abayonet-slot in the opposite end of said stovepipe, substantially asdescribed.

3. The combination with a suitable base, of means mounted thereon forstamping a bayonet-slot in the end of a stovepipe, a slide mounted onsaid base, means for locking said slide in its adjusted positions, acurved support or cradle mounted upon said slide and adapted to receivethe end of a stovepipe, and a punch also' mounted upon said slide andadapted to punch a projection or teat upon one end of a stovepipe,substantially as described.

4. The combination, with a suitable base, of a die-lever pivoted uponthe same, a segmental lever mounted on said die-lever and adapted toengage the base to operate said pivoted lever and dies formed on saiddielever and base respectively for forming a bayonet-slot in the end ofa stovepipe, substantially as described.

5. The combination, with asuitable base, of a die-lever upon the same, asegmental lever pivoted to one end of said lever and adapted to engagethe base to operate said die-lever, dies formed upon said pivot-leverand the base respectively and adapted to stamp a bayonet-slot in the endof a stovepipe, and gages mounted in said base to limit the movement ofthe stovepipe past the dies, substantially as described.

In testimony whereof we have signed this specification in the presenceof two subscribing witnesses.

ELIAS GRAHAM. JACOB JACQUART.

WVitnesses:

JAMEs H. PAYNE, HENRY S. MERKLE.

